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Sensor-actuator connectors meet field bus specs

Posted: 05 Sep 2007 ?? ?Print Version ?Bookmark and Share

Keywords:round connector? field bus specification? industrial automation?

CMA5000 with Gigabit Ethernet Module

ERNI Electronics has expanded its M8/M12 family of round connectors with a comprehensive selection of accessories, ranging from ready-assembled connecting cables, distributors and adapters to components using quick-connect terminal technology. This completes a portfolio that connects sensors and actuators via field buses in industrial automation.

The M12 connectors are now recommended for almost all field bus specifications, including Profibus, Interbus, and CANopen. With IP67 protection rating, the connectors are specifically designed for tough, high-moisture industrial environments, and are traditionally used for the connection of sensors and actuators in automation technology.

Amendment 1 of the IEC 61076 2 101 standard specifies a 4-pin D-coded version for Industrial Ethernet applications. Whereas previously actuators and sensors were primarily regulated by control systems in the switch cabinet, using I/O cards, widespread use is now being made of field devices fitted with local I/Os and connected via field buses. In response to this trend, ERNI has added cable systems for M8/M12 round connectors to its range of PCBs. These are produced in a variety of modules, pin configurations, cable lengths and cable qualities for the most cost-effective and optimized automation solution.

All the components conform to protection class IP67and are resistant to shock and vibration, resulting in reliable connections. The ready-assembled cables are made of PVC with different colored LEDs indicating the operating voltage and switching status. For particularly demanding specifications, polyurethane cables are also available, which are not only resistant to lubricants and coolants, but also have excellent capacity to withstand abrasion, making them ideal for use as ground cables.

In addition, the standard connecting cables are fitted with a self-locking screw fastening. The company can also supply ready-to-assemble round connectors using quick-connect terminal technology (without tools). T-distributors (male/female), adapters (M8 to M12 and vice versa) and switch cabinet lead-throughs complete the full product range.




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